IP Library Granted Patent US 7,889,287
Granted Patent B2
US 7,889,287 · App. 12/124,605 · Granted Feb 15, 2011

Display device with first and second elastic spacers extending in parallel on opposite surfaces of a display panel and having different hardness at corresponding locations

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Quick Facts
Patent No.
US 7,889,287
App. No.
12/124,605
Granted
Feb 15, 2011
Kind
B2
Abstract

A display device includes a display panel, a frame, an elastic spacer arranged on a peripheral portion of the display panel in parallel to the edge of the display panel, the elastic spacer being arranged between the display panel and the frame. A hardness of the elastic spacer varies along the length-side direction of the elastic spacer.

Claims (10)

1. A display device comprising:

a display panel;

a first frame and a second frame; and

a first elastic spacer and a second elastic spacer arranged on a peripheral portion of a first surface and a second surface the display panel, respectively, so as to extend in parallel to one another with respect to the peripheral portion of the display panel, the first elastic spacer being arranged between the first surface of the display panel and the first frame, and the second elastic spacer being arranged between the second surface of the display panel and the second frame;

wherein a hardness of at least one of the first elastic spacer and the second elastic spacer varies along an elongated direction of the at least one of the first elastic spacer and the second electric spacer;

wherein the hardness of the first elastic spacer varies along the elongated direction of the first elastic spacer, and the second elastic spacer is arranged in parallel to correspond in location to the first elastic spacer, and the hardness of a first portion of the second elastic spacer which corresponds in location to a high-hardness portion of the first elastic spacer is low, and the hardness of a second portion of the second elastic spacer which corresponds in location to a low-hardness portion of the first elastic spacer is high.

2. A display device according to claim 1 , wherein at least one of the first elastic spacer and the second elastic spacer has a center portion and an end portion along the elongated direction, and the hardness of the center portion and the hardness of the end portion thereof are different.

3. A display device according to claim 1 , wherein the first elastic spacer and the second elastic spacer each have a center portion and an end portion along the elongated direction, and the hardness of the center portion and the hardness of the end portion thereof is different.

4. A display device according to claim 1 , wherein the hardness of the first elastic spacer and the hardness of the second elastic spacer are substantially equal at a corner portion of the peripheral portion of the display panel.

5. A display device according to claim 1 , wherein the first frame includes a portion overlying the peripheral portion of the first surface of the display panel and the second frame includes a portion overlying the peripheral portion of the second surface of the display panel, the first elastic spacer being arranged between the portion of the first frame and the peripheral portion of the first surface of the display panel and the second elastic spacer being arranged between the portion of the second frame and the peripheral portion of the second surface of the display panel.

Assignments (3)
COMPANY SPLIT PLAN TRANSFERRING FIFTY (50) PERCENT SHARE OF PATENTS AND PATENT APPLICATIONS Recorded Dec 12, 2011
From: HITACHI DISPLAYS, LTD.
To: IPS ALPHA SUPPORT CO., LTD.
Reel/Frame 027362/0532 →
MERGER/CHANGE OF NAME Recorded Dec 12, 2011
From: IPS ALPHA SUPPORT CO., LTD.
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 027363/0282 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 4, 2011
From: HITACHI DISPLAY DEVICES, LTD.
To: HITACHI DISPLAYS, LTD.
Reel/Frame 026223/0293 →